Calcium-carbid product.



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'AMES TURNER nonsense, or NEW YORK, N. Y., ASSIGQNOR, BY nEsNE ss eNnnN'rs, TO wrLLsoN LABORATORY commas, or NEW YORK, N. Y., A CORPORATION or wns'r VIRGINIA.

CALOIUM-CARBID PRODUCT.

asses:

Specification of Letters Patent.

. Patented July 80,1901

pin ch as October 14, 1895, Serial No. teases.- mean n this application filegl June 19,1906. stun No. 322m.

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. Be it known that 1, Limits TURNER Monunnsn, a citizen of the United States, residing in the borough of Msnhsttan, city, county, and State of New York, haveinvented certain new and useful Improvements in the Calciu1 u- Qarbid Product, of which the following is a cime I This application is a division of my. application sfor improyeinents in the manufacture of phorphorfis filed mosses-r14, 1895, Serial No. 565,638. My said application forfpatent describes an' improved process for the production; of phosphorus from a phosphate of a metallic distinguished by the formation of metallic carbide from the metallic bases of such phosphates, the

I phosphates being reduced and most of the phosphorus driven off during the operation.

The'pr'ocess is performed by smelting in an electric furnace a phosphate of a metallic base (as calcined and ground bones, or ground phosphate rock, etc.) with a sufilcient proportion of when to serve not only as a reducing agent for the phosphoric acid, but also to reducethe'metallic oxid base and produce a carbid thereof. In prac'ticefl l employ a phosphate rock con- ,sis'tiug chiefly of tricalcic phosphate, and I employ powdered carbon and a hydrocarbon gas as the reducing ,agelitfifiho resifltants oi the proce'ssbeing carbon mo id which passes through a condenser and. is phosphom's which is arrested inthe condenser, ai djealc um carbid' which i-einains in the furnace, with PPM? n ses J' The oslciulnflorother metallic carbid produced by thisiproc'essia a 'yslupble by product. It is not a pure oarbid, but contains a phosphorus compound, gnd liot inaptlybeudesignated a phosphoric or phpsphorizedcalcium carbid. The phosphorus exists in'the tamer calcium phosphid, which is intimately combined with the carbid by the smelting operation.

gr ts i th i s'b s e h h m i- 40 Urdin ary calcium carbid is used as'a source of acetylone gas by simply decomposing it with water; but the phosphorized' carbid cannotbe so treated under orditilsfifthe by-produclh due to the presence of other in-'- metallic carhlfcontalnlng ri'meta'lllc phosphld} said on.

nary conditions, because of its liberation .of phos'' 'phorus which is ignited by the heat of combination' and burns to phosphoric acid, polluting theacetylenp'. "4.5: In fact the phosphorized carbid ignites spontaneously H on contact with water, so that a piece droppedin; a moist place will burn with evolution of phosphoric fumes. This renders the pr osphorized carbide very dangerous substance to handle or store; yet such car-bid has certain properties which render it desirable for certain uses. On being treated with water it generates acetylene and hydrogen phosphid, and the latterignites spontaneously, thus igniting the acetylene! I As apossible use for such product I will suggest that in case it should become desirable to illuminate a distant point on a body of water at night, a cartridge or shellchargd with this material might be fired from a gun under such conditions as to liberate the material on strikingjhe A water. The carbid would then instantly begih to generate acetylene gas, which would be ignited by the phosphid, and if the. mass were made to float, the reaction would continue until all thecarbid was de. composed, sothat a brilliant'illumination could be maintained for a considerable time, depending on the rapidity with which water was admitted to the carbid.

Other uses for. this new product will doubtless suggest v Z themselves in course of time.v v

For a more full description pithe process, refer is made to my original application above reierred'tp '1. The new product herein described; themetallic carhld' containing a metallic phosphi p 2. Thenewprduct herein despx'lbed, tn calcium carhld'containllig calcium phosgh d,

3. The new product herein desqrlbefl'tliessme being bid and phospliid being intimately combined by smel them together in the to'rml'ng thereof. In witness whereof, I have hereunto signed my name in the presence of two subscribing witnesses.

JAMES TURNER MOBEHEAD.

- Witnesses:- 

